fluid mechanisms Flashcards
1
Q
fludi machnisms
A
study of an object that travels through liquid or gas
2
Q
what are the 2 dynamic fluid forces
A
drag and lift
3
Q
drag
A
slows something down
resistance
acts in oppostion to the diraction of motion
negative effect on velocity
4
Q
hpw is drag force produced
A
produced from air restcnce and friction
5
Q
what are the two types of drags
A
surafce drag-friction between surface orf oject and the envorment
e.g wimmers wear swimming caps and shave off their body hair
form drag-forces affecting leading edge of object increase with drag